Massage gun head seal



FIG. 1 is a front view of an applicator for massage gun head seal, showing our new design;

FIG. 2 is a Left View thereof;

FIG. 3 is a Bottom View thereof; and,

FIG. 4 is a Front perspective view thereof.

The broken lines shown in the drawings are for the purpose of illustrating portions of the massage gun head seal, which form no part of the claimed design. 

CLAIM The ornamental design for a massage gun head seal, as shown and described. 